Edexcel GCSE Design and Technology · 1DT0
Specification 6.8.1 · Paper 1
Revise: Chemical, Physical, Biological and Smart Textile FinishesRaising uses rollers fitted with fine wires or hooks to pull fibre ends up from the fabric. The resulting hairy surface is called a nap. It makes the fabric feel softer and traps air, improving warmth.